Code cleanup [skip ci]

database/seeds/ConfigSeeder.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 use FireflyIII\Models\Configuration;
 use Illuminate\Database\Seeder;
@@ -10,8 +10,6 @@ class ConfigSeeder extends Seeder
 {
     /**
      * Run the database seeds.
-     *
-     * @return void
      */
     public function run()
     {